Abstract: For a well pump installation, automatic control of the starting and stopping of the pump motor relies upon a simultaneous detection of the suction and delivery heads so that a single switch may perform the functions of both delivery pressure control and dry cutting-off.

Abstract: A velocity at the time when the accelerator of a vehicle is released is stored under a certain condition in advance, and the stored vehicle velocity and an actual vehicle velocity are compared. When the actual vehicle velocity becomes greater than the stored vehicle velocity by a predetermined value, the downward inclination of a running road surface is regarded as exceeding a predetermined value, and safety means such as a brake is driven. As compared with a case of employing an inclination angle sensor such as a mercury switch, the device operates accurately without being influenced by a change in the vibration or acceleration of the vehicle.

Abstract: A subaqueous heater apparatus of simple construction adapted for use by a human diver who in underwater activities needs to maintain his vital warmth. The apparatus contains uncombined calcium which under the gradual, controlled supply of water effects chemical reaction with evolution of heat. The supply of such water into the apparatus by capillary action is so controlled that the apparatus serves as an optimum body-warmer to the diver.

Abstract: For cold temperature storage on a gravity rollerway conveyor, the parallel flights of rollers of the rollerway conveyor each have a first group of rollers engaging the pallets in their storage position with surfaces having no appreciable compression set characteristics and a second group of rollers not in engagement with the pallets in their storage position but engaging the pallets when moving from one storage position to another storage position with elastomeric surfaces having appreciable compression set. The first group of rollers may be constructed with support surfaces that are rigid, while the second group of rollers may be constructed with support surfaces that are elastomeric with substantial hysteresis properties.

Abstract: A nuclear fuel assembly having a bundle of longitudinal fuel elements vertically disposed in a reactor vessel, an upper and a lower tie plate supporting the top and the bottom of the bundle of the fuel elements, a fully ended tubular channel covering around the bundle of the fuel elements to define a coolant flow passage. The channel is removably supported by the upper tie plate. After a predetermined operating period, the channel is pulled out from the fuel assembly, turned upside down and thereafter again inserted over the fuel assembly in a upended state so that the life time of the channel is elongated.

Abstract: A method for the connection of sheet metal panels coated on at least one surface with a layer by the electrical fusin of a metal, wherein the improvement comprises the steps of supplying an electric current for the fusion of metal indirectly along the sheet metal of at least one panel to the zone at which said panels are to be connected to each other, and keeping the temperature of an outer layer of at least one of said panels below the melting point of said layer.

Abstract: An apparatus for separating non-magnetic materials of different densities, which apparatus includes a material separating portion, in which a magnetic fluid is retained in a magnetic field having a gradient in a vertical direction. In this apparatus, a single conveyor is jointly used for the supply, and charging of materials to be separated, into the material separating portion, and the transporting of floating materials of a low density through the magnetic fluid and their recovery outside.

Abstract: Method of and apparatus for separation of solids from a liquid employs an elastic sheet filter which has pores of diameter larger than an average diameter of the solid and smaller than the maximum diameter thereof. The liquid is filtered under pressure by a filtered residue layer developed on the sheet filter. Then liquid is rapidly introduced to the sheet filter portion from the reverse direction to liquid flow occured during the filtration of the liquid so that the sheet filter and filtered residue layer pressed during the filtration is rapidly pressed in the reverse direction, whereby the filtered residue layer is flaked out in the liquid and separated therefrom.

Abstract: Coupling for piping for a roll chock in a rolling mill, which allows quick exchange of rolls and automatic coupling of piping in the roll chock for supplying lubricating oil. In this rolling mill, male and female tubular couplings are secured to a roll chock, and to a mill housing, respectively, so that the male and female tubular couplings may be engaged with or disengaged from each other only by displacing the roll assembly in its axial direction.

Abstract: A vending machine which measures the weights of a retaining vessel, having commodities, so as to determine the difference in weight before and after the removal of commodities as an electrical signal. An in-line system includes a locking access door for taking out commodities from the machine by inserting a lock-releasing medium into the automatic vending machine. An off-line system includes a system for storing nomenclature, quantity, price and the like of commodities to be purchased by inserting a storing medium into the automatic vending machine.

Abstract: This invention relates to a process and composition for the production of highly heat-resistant insulating coatings on electrical conductors by coating the conductors with solutions containing catalysts and, levelling agents of thermosetting amide and/or imide-modified ester resins of polyhydric alcohols, polybasic carboxylic acids containing carboxyl groups attached to aromatic rings, optionally in admixture with aliphatic carboxylic acids and, optionally, their anhydrides and/or esters, and compounds containing amino groups, and heating the coated conductors to object temperatures of 150.degree.-400.degree. C.

Abstract: The elements of the solar panel are arranged generally in parallel planes that, starting from the top, include a transparent sheet, a plurality of converging lenses, a plurality of solar cells arranged in electrical series respectively aligned with the converging lenses, an electrically insulating support plate that together with the sides of the solar unit and the top sheet form a vacuum chamber for the lenses and solar cells to reduce heat transfer by convection and conduction upwardly from the solar cells, a thermopile, a heat sink plate receiving heat from the thermopile, heat transfer fins receiving heat from the heat sink plate, a serpentine conduit in heat exchange with the heat fins, thermal insulation, and a bottom plate that is connected to the side walls.

Abstract: Lifting floor for swimming pool comprising a height adjustable selfsupporting plate which is carried by lifting columns extending substantially the whole height of the swimming pool, the lifting columns being formed as supporting columns of corrosion resistant material resting on the pool bottom, braced against tipping inwardly by the lifting floor and against tipping outwardly by directly supporting against the pool walls, and passing through holes in the lifting floor.

Abstract: A reverse-flow air conditioner comprises a compressor for delivering a hot compressed refrigerant gas, a four-way valve for shifting the flow direction of the refrigerant, indoor and outdoor heat exchangers for separately accomplishing the condensation and evaporation of the refrigerant during cooling and heating cycles, a receiver communicated with the both heat exchangers, decompression means for changing the liquid refrigerant, condensed by the indoor or outdoor heat exchanger depending on whether the cycle is for cooling or heating, into a mixture of gaseous and liquid refrigerant portions, and a suction accumulator for separating the refrigerant, vaporized by the indoor or outdoor heat exchanger according to the cycle, into gaseous and liquid portions, the components being interconnected by refrigerant piping.

Abstract: A new asexually reproduced Kalanchoe characterized by its uniform floriferous flowering of light purple colored flowers and wide versatility in the sizes of flowering plants that can be produced having outstanding keeping qualities.

Abstract: A chrysanthemum cultivar particularly characterized as to uniqueness by the combined characteristics of flat capitulum form; daisy capitulum type; white ray floret color; diameter across face of capitulum ranging from 100 to 120 mm. at maturity; uniform 7 week photoperiodic flowering response to short days; tall plant height when grown as a single stem cut spray; and semi-upright branching pattern.

Abstract: A method for the connection of sheet metal panels coated on at least one surface with a layer by the electrical fusion of a metal, wherein the improvement comprises the steps of supplying an electric current for the fusion of metal indirectly along the sheet metal of at least one panel to the zone at which said panels are to be connected to each other, and keeping the temperature of an outer layer of at least one of said panels below the melting point of said layer.

Abstract: A new asexually reproduced kalanchoe characterized by its intense bright red purple flower color, uniform mounded inflorescence, and broad versatility of sizes of plants that can be produced with equal keeping qualities regardless of size.

Abstract: A new asexually reproduced kalanchoe characterized by its double crenate green oblong to elliptical foliage, branching at many of the leaf axils, peduncles of the inflorescence and individual flower pedicels being small in diameter but distinctly wiry and stiff, uniform flowering and very floriferous with orange red flowers, with both the foliage and flowers possessing outstanding keeping qualities.

Abstract: A wall unit comprising panels lying at opposite faces of said unit, a seal arranged between the margins of said panels, and an insulation occupying the cavity between said panels, wherein the improvement comprises at least one insulating group extending parallel to said panels and comprising two foils capable of reflecting thermal radiation and chambers lying between said foils, the walls of which consist of insulating material. The cavity between said panels may be evacuated or it may be filled with dry air or a dry gas.